putgrent(3)

NAME#

putgrent - write a group database entry to a file

LIBRARY#

Standard C library (libc, -lc)

SYNOPSIS#

#define _GNU_SOURCE\n         /* See feature_test_macros(7) */
\n#include <grp.h>

int putgrent(const struct group *restrict \ngrp\n, FILE *restrict \nstream\n);

DESCRIPTION#

The putgrent() function is the counterpart for fgetgrent(3). The function writes the content of the provided struct group into the stream. The list of group members must be NULL-terminated or NULL-initialized.

The struct group is defined as follows:

struct group {
\n
    char   *gr_name;      /* group name */
\n
    char   *gr_passwd;    /* group password */
\n
    gid_t   gr_gid;       /* group ID */
\n
    char  **gr_mem;       /* group members */
};

RETURN VALUE#

The function returns zero on success, and a nonzero value on error.

ATTRIBUTES#

For an explanation of the terms used in this section, see attributes(7).

STANDARDS#

GNU.

SEE ALSO#

fgetgrent(3), getgrent(3), group(5)